Roller-chain for conveyers.



RLLER `CHAIN FOB. GOIIV'EYERS.l urmcnmu FILED JULY 2. 1903. ammwnn Dnc. 22.1905.

UNITED 'STATES PATENT perron.

Specification of Letters Patent.

Application filed July 2, 1903.A Renewed December 22, 1905. Serial No. 292.967.

To all whom, it may conern:

Be it known that I, ADOLPH JOHNSON, a citizen of the United States, residing at Battlecreek, in the county of Calhoun and State of Michigan, have invented certain new and useful Improvements in Roller-Chains 'for Conveyers and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and-to the letters of reference marked thereon, which form a part of this specification.

My invention relates to roller-chains for conveyers, and has for its obj ect the production of a link or-element of such a chain of special construction and arrangement of parts.

The stated object I accomplish by means of the particular parts and their association, as illustrated in the accompanying drawings, of which- Figure 1 is a plan view of one link with the roller omitted`.--. Fig. 2 is a side view of the link, showing the roller or wheel in position and the devices Jfor securing it upon the spindle, and Fig. 3 is a plan view of a portion of a conveyer chain constructed in accordance with my invention and supporting a anor other receptacle to show one manner o using the invention. Fig. 4 is a side view Ofthe cylindrical pivot-pin. In Fig. 3 the scal'e of drawing is'somewhat reduced.

Like letters refer to like parts in the several views.

Considering the drawin s, letter A--,desig nates one side or leg ofthe' ink, and Bthe opposite and remaining side ofthe two longitudinal pieces constituting the larger portion of the link itself. The sides A and B are connected by a junction or endl-piece C, usually cylindrical, as shown, and om which the sides project, diverging from each other to about the extent illustratedin Fi s. 1 and 3.

In Fig. 2 it will be observed that t e cylinder C is piercedaxially by the .bore D, and a pin E (see Fig. '4) is formed to pass through the bore D. It Will also be seen from Fig. 2 that the ends of the sides A and B. are provided posite each other in the iigure. 4 The Vorifice in the side A is extended at one lace'into a key-slot G, while the oriicein t e remaining de B of the link passes also through a hollow cylin When the links the pivot-piti E, will make clear the construca tion" by which it is proposed to render the pin -secure yagainst all probable accidental displacement. Immediately next its head K aiprpears the spline L, and the cotter M passes t ough the opposite extremity of the in. are coupled one to anot er, the divergent ends of one receive between them the cylindrical junction C to another, and the pin Epasses through the pierced ends of the sides and through the junction, the spline L entering the key-seat G of the'side A, and the cotter M being passed through the end of the pin and also through the key slot or passage J, above mentioned as formed inv rojection on the outside of It is believed to be nowthe cylindrical the'end of side clear that the pin cannot become displaced lengthwise by reason of the action-of the cotF ter, nor can it revolve on account of the engagement of thespline L and its seat. Even if the spline were absent the cotter in the key slot or passage J would prevent both displacement and revolution; but `it is desired to employ every precaution to avoid the loosening of any pin during the operation of the chain, as the resulting breakage might prove disasiifrjnus.-

Considering'fjFig. 1 itfwill be seen that the side' Apossesses la projecting spindle N and Patented Feb. 13, 1906.

thatthe' axis. fof the spindle is perpendicular not to the side A, but to the median longitudinalline or axis of the link. In other Words, the spindlel extends at right angles to the path of the link or chain. Spindle N is provided with two annular shoulders O and P, and the roller R is revoluble on' the spindle against the inner shoulder O. A washer S, having a slotted projecting portion s, is next placed against the outer annular shoulder -of spindle N, and a cotter T, assed diametrically through the end of the spindle and through the slotted portion of the washer, holds the Washerand roller on-tthe spindle. The thickness of the roller is such .as to ermit free rotation on the spindle but litt e side play between the inner shoulder Oa'nd the washer. There also appear in Fig. 1 the ears or lugs U, extending outwardly from the side B of IOO 'the link and pierced by the screw or rivet. rio.

witha transversefbore, thesai legs'4 eingerranged side by side, the remaining Iends of the legs having orifices and being separated and adapted to receive between. them the end piece of another link, a pin passing through the-:said oriiices inthe legs .of one link and through the end piece of the next link disosedbetween-those legs as described, means or securing the pin, one leg of each link hav- 4ing prpjectmg lugs, and the other leg having aprojecting spindle, and rollers revoluble upon thesaid spindles, each link having one said rollers, as set forth. `In testimony whereoi1 I affix my signature in presence of two Witnesses. l v

I ADOLPH JOHNSON. Witnesses:

GEO. W. Boron, H. J. JoHNsoN. 

